package live

import (
	"context"
	"errors"

	bizlive "kra/internal/biz/live"
)

type FollowService struct{ uc *bizlive.FollowUsecase }

func NewFollowService(uc *bizlive.FollowUsecase) *FollowService { return &FollowService{uc: uc} }

func (s *FollowService) Status(ctx context.Context, userID, roomID uint) (bool, error) {
	_, err := s.uc.Get(ctx, userID, roomID)
	if err == nil {
		return true, nil
	}
	if errors.Is(err, bizlive.ErrFollowNotFound) {
		return false, nil
	}
	return false, err
}

func (s *FollowService) Follow(ctx context.Context, userID, roomID uint) (bool, error) {
	_, err := s.uc.Follow(ctx, userID, roomID)
	return err == nil, err
}

func (s *FollowService) Unfollow(ctx context.Context, userID, roomID uint) error {
	return s.uc.Unfollow(ctx, userID, roomID)
}